The clearance meets the 3 groups specified by the standard

NR-FAG bearing with stop groove and stop ring on the outer ring. FA——Steel solid cage, outer ring guide. Mainly refers to cylindrical roller FAG bearings and deep groove ball FAG bearings with inner diameter d>60mm. LA——Light metal solid cage with outer ring guide. Example: 6207N. Example: 6207. Example: GS.2ZRN.790144-FAG bearing can be used for high temperature and low speed, after special heat treatment, steel stamping and riveting cage, large clearance, after phosphating treatment, grease injection, the service temperature can exceed 270℃. M, M1-brass solid cage.

A or B is placed after the cage code, A means the cage is guided by the outer ring, and B means the cage is guided by the inner ring. Post code-Clearance C1-Clearance meets the standard requirements of 1 group, less than 2 groups.3541). Example: NU207V.ZB. N-FAG bearing with stop groove on the outer ring. For example, 31314A. For example, B7004C. VT——Full complement rolling element FAG bearing with isolation ball or roller.160——6212FAG bearing, axial clearance 120μm to 160μm. Example: 6207ZRN.

K2——Two sets of deep groove ball FAG bearings are installed in pairs to bear bidirectional axial load. Example:Mechanical roller bearings manufacturers 6207. K30-taper bore FAG bearing, taper 1:30. K7-Two sets of angular contact ball FAG bearings are installed back to back without clearance (O-type installation).ZB-cylindrical roller with convexity with a diameter greater than 80mm.

FP——Steel solid window type cage.20——6210FAG bearing, radial clearance 10μm to 20μm.81108R-FAG bearing without separable inner ring or outer ring.HG.K5. K4——Two sets of deep groove ball FAG bearings are installed face to face without clearance (X-type installation). WS-Thrust cylindrical roller FAG bearing ring. .K5.81112. Example: 2308K. When installing bearings belonging to the same group, the installation should be carried out in accordance with the markings and positioning lines.

C3——The clearance meets the 3 groups specified by the standard, and is greater than 0 group. Z52JN.F3. Post code-Sealing and dustproof RSR-FAG bearing has a sealing ring on one side.HG clip cloth handed to the pocket solid cage, outer ring guide, accuracy grade HG

The temperature difference between the inner and outer rings is large

When the shaft is moved with a crowbar to make the shaft in two extreme positions, the difference between the dial indicator readings is the axial clearance of the bearing. The size of the clearance (called the working clearance) during operation has an impact on Wholesale roller bearing manufacturers the bearing's rolling fatigue life, temperature rise, noise, vibration and other properties. 2. The matching of the outer ring of the bearing and the housing hole.

When the rotation accuracy is high or the axial displacement needs to be strictly limited, a small clearance group should be used. The operation method is the same as the method for checking radial clearance with a plug, but the axial clearance should be c=λ/(2sinβ) where c——axial clearance, mm; λ——thickness of feeler gauge, mm; β——bearing cone angle, (°). Note: The reduction in radial clearance is related to the actual effective interference of the matching parts, the matching shaft diameter, and the wall thickness of the housing hole.

However, the force applied to the crowbar cannot be too large, otherwise the shell will be elastically deformed, even if the deformation is small, it will affect the accuracy of the measured axial clearance. The bearing clearance standard is not regulated by the country and depends on the use situation: it is still a very complicated problem, which is briefly described as follows: A. This method is used when the shaft end is exposed.

Bearing clearance is also called bearing clearance. When the shaft end is closed or cannot be checked with your fingers for other reasons, you can check whether the shaft rotates flexibly. Check with a dial indicator.. A tighter fit is adopted, the temperature difference between the inner and outer rings is large, and the friction torque needs to be reduced. According to the direction of movement, it can be divided into radial clearance and axial clearance

Can bear radial load and bidirectional axial load

Two single-row angular contact ball bearings combined on the back of the structure share the inner ring and outer ring, which can bear radial load and bidirectional axial load. Sealed type bearings without filling groove. Mainly applicable cage: steel stamping cage (bowl shape.. Deep groove ball bearing. The most representative rolling bearing, widely used.

Can bear radial load and bidirectional axial load. Suitable for high-speed rotation and occasions requiring low noise and low vibration. Sealed bearings with steel dust caps or rubber seals are pre-filled with an appropriate amount of grease. Bearings with a stop ring or flange on the outer ring, which are easy to locate in the axial direction, and are easy to install in the housing.

The size of the maximum load bearing is the same as the standard bearing, but there is a filling groove in the inner and outer rings, which increases the number of balls and increases the rated load.Mainly applicable cage: steel stamping cage (wave, crown shape. Woodworking machinery, textile machinery drive shaft, vertical belt seat self-aligning bearing.

The cylindrical roller is in line contact with the raceway, and the radial load capacity is large, that is, it is suitable for bearing heavy loads and impact loads, and also suitable for high-speed rotation. N-type and NU-type can move axially, and can adapt to thermal expansion or installation errors. According to the difference of the internal structure, it is divided into four types: R, RH, RHA and SR mechanical bearings manufacturers Since the arc center of the outer ring raceway is consistent with the bearing center, it has self-aligning performance, so it can automatically adjust the axis misalignment caused by the deflection or misalignment of the shaft or housing.

Can bear radial load and bidirectional axial load. According to the state of the bearing, the clearance can be divided into the following three types: Original clearance. The clearance in the free state before the bearing is installed.2RS, 23. The maximum amount of movement in the radial direction is called radial clearance, and the maximum amount of movement in the axial direction is called axial clearance. 

It can effectively prolong the service life of the bearing

ACD-The contact angle is 25 degrees. B-The contact angle is 40 degrees. CC——The contact angle is 12 degrees. CD-The contact angle is 15 degrees. BE-BE type bearing with a contact angle of 40 degrees, with enlarged steel balls, and glass fiber reinforced nylon 6.6 cage.

Double row angular contact ball bearing A-the standard design of the bearing with an outer diameter less than or equal to 90 mm, no ball gap, glass fiber reinforced nylon 6.6 cage. E-There is a ball opening on one side of the bearing, which can hold more steel balls, so it has a higher radial and axial load capacity. Spherical roller bearings CAC, ECAC, CA, ECA-these are designed for large-size bearings, and the rollers are symmetrical.

Jiyuan deep groove ball bearing bearings (Bearing) is an important part of the contemporary era. Its main function is to support the mechanical rotating body, reduce its movement during its movement, and ensure its rotation accuracy. Bearing nylon cage, referred to as plastic cage, is a new generation China INA Bearing Manufacturers product that replaces copper cage and iron cage.

Compared with metal cage, it has great advantages: Its light weight makes the bearing more flexible. If it is used in electrical appliances or power consumption products, it has a great effect on energy saving. It has low noise and is the first choice for silent bearings, especially for electrical products with high noise requirements.

Third, it can effectively prolong the service life of the bearing, and the friction between the metal cage and the steel ball is reduced, and the plastic protection has a great effect on extending the service life of the bearing.